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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.
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The average adult has about 21 square feet of skin.